Differential Cross Sections for Lambda(1520) Using Photoproduction at CLAS.
The reaction γp→K+Λ(1520) using photoproduction data from the CLAS g12 experiment at Jefferson Lab is studied. The decay of Λ(1520) into two exclusive channels, Σ+π− and Σ−π+, is studied from the detected K+, π+, and π− particles. A good agreement is established for the Λ(1520)differential cross sections with the previous CLAS measurements. The differential cross sections as a function of center-of-mass angle are extended to higher photon energies. Newly added are the differential cross sections as a function of invariant four-momentum transfer t, which is the natural variable to use for a theoretical model based on a Regge-exchange reaction mechanism. No new N∗resonances decaying into the K+Λ(1520) final state are found.
Copyright © 2021, APS Physics.
Shrestha, U., T. Chetry, C. Djalali, K. Hicks, S. Nam, K. P. Adhikari, S. Adhikari, G. P. Gilfoyle, et al. “Differential Cross Sections for Lambda(1520) Using Photoproduction at CLAS.” Physical Review C 103, no. 2 (February 24, 2021): 025206. https://doi.org/10.1103/PhysRevC.103.025206.